+ try {
+ auto gvar = sr_dev->config_get(ConfigKey::EXTERNAL_CLOCK);
+ if (gvar.gobj()) {
+ bool value = Glib::VariantBase::cast_dynamic<Glib::Variant<bool>>(
+ gvar).get();
+ sample_rate_.allow_user_entered_values(value);
+ }
+ } catch (Error& error) {
+ // Do nothing
+ }
+